Water or water/methanol, which is best?

[Sato]

My question is which is best at preventing detonation. Water only or water/methanol mix? When do you know that the addition or subtraction of methanol in the mix would be the way to go? Freezing prevention is not an issue.
Sato

[Charged Performance]

The paper we posted a link to here suggests that 50/50 water/methanol provides the best detonation suppression and power results.

http://waterinjection.info/phpBB2/viewtopic.php?t=11